Leave site message on Joplin (documents > collection)

## Describe the bug
In Documents, if you move from 1 page to the next you get a "leave site" message. Obs, nothing has been changed.
## URL

## To Reproduce
Sign into Joplin
Go to the Documents tab
Select another collection
You should get the "Leave site?" message

## Current behavior
This happens on Documents, but I'm wondering if the same would be true for images.

## Expected behavior
Don't make our users have to click to get out of a modal which should never have appeared in the first place.

## Screenshots

Acceptance criteria
- [ ] Leave site modal does not appear when selecting another collection.